Kenwood TK-481 - Manual

Kenwood TK-481

Kenwood TK-481 – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.

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Table of Contents:

  • Page 2 – SERVICE MANUAL; PC BOARD VIEWS; CONTENTS; REVISED II
  • Page 3 – INTRODUCTION; SCOPE OF THIS MANUAL; ORDERING REPLACEMENT PARTS
  • Page 4 – OPERATING FEATURES; Operation Features; Antenna connector
  • Page 7 – Last called revert; Details of Features
  • Page 8 – ARQ mode
  • Page 9 – Auto Reset
  • Page 11 – Audible User Feedback Tones
  • Page 12 – Search Mode Tone; OPERATING FEATURES / REALIGNMENT; REALIGNMENT; How to Enter Each Mode
  • Page 13 – Firmware Programming Mode
  • Page 15 – Circuit Configuration by Frequency; Frequency configuration; CIRCUIT DESCRIPTION
  • Page 16 – Audio amplifier circuit; Transmitter System
  • Page 17 – Microphone amplifier
  • Page 18 – PLL block diagram; Frequency Synthesizer Unit
  • Page 19 – Key input; Signalling Circuit; • MSK
  • Page 20 – Power Supply Circuit; Power supply circuit; Optional Board Terminal; Table 1
  • Page 21 – SEMICONDUCTOR DATA; Pin function
  • Page 22 – nit
  • Page 23 – Block diagram
  • Page 24 – DESCRIPTION OF COMPONENTS
  • Page 25 – PARTS LIST
  • Page 31 – EXPLODED VIEW; Parts with the exploded numbers larger than 700 are not supplied.
  • Page 32 – PACKING
  • Page 33 – ADJUSTMENT; Test Equipment Required for Alignment
  • Page 34 – How to Remove the Flat Cable; • Panel tuning
  • Page 35 – Test Mode
  • Page 36 – Tuning mode; F R EQ; • Transceiver tuning; Adjustment Points
  • Page 37 – Transmitter Section
  • Page 40 – Receiver Section
  • Page 41 – TERMINAL FUNCTION
  • Page 45 – PC BOARD VIEW
  • Page 48 – SCHEMATIC DIAGRAM
  • Page 49 – BLOCK DIAGRAM
  • Page 53 – SPECIFICATIONS; General; Receiver; Transmitter
  • Page 55 – KENWOOD CORPORATION
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Document Copyrights

Copyright 2006 by Kenwood Corporation. All rights reserved.
No part of this manual may be reproduced, translated, distributed, or transmitted in any
form or by any means, electronic, mechanical, photocopying, recording, or otherwise, for
any purpose without the prior written permission of Kenwood.

Disclaimer

While every precaution has been taken in the preparation of this manual, Kenwood
assumes no responsibility for errors or omissions. Neither is any liability assumed for
damages resulting from the use of the information contained herein. Kenwood reserves
the right to make changes to any products herein at any time for improvement purposes.

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Summary

Page 2 - SERVICE MANUAL; PC BOARD VIEWS; CONTENTS; REVISED II

© 2001-3 PRINTED IN JAPANB51-8408-20 (N) 1015 800MHz/900MHz FM TRANSCEIVER TK-480/481 SERVICE MANUAL GENERAL ............................................................ 2 SYSTEM SET-UP ................................................ 2 OPERATING FEATURES .................................... 3 REALI...

Page 3 - INTRODUCTION; SCOPE OF THIS MANUAL; ORDERING REPLACEMENT PARTS

2 TK-480/481 GENERAL / SYSTEM SET-UP INTRODUCTION SCOPE OF THIS MANUAL This manual is intended for use by experienced techni- cians familiar with similar types of commercial grade com-munications equipment. It contains all required service in-formation for the equipment and is current as of this pub...

Page 4 - OPERATING FEATURES; Operation Features; Antenna connector

3 TK-480/481 OPERATING FEATURES 1. Operation Features The TK-480/481 is an 800/900MHz band EFJ LTR™-com- patible trunked radio designed to operate in both trunkedand conventional modes. The programmable features aresummarized. Model Trunking mode Conventional mode This model can handle up to 32 syst...

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